Challenge
Magic numbers
Turn the bare 9.81 and 1000 in a weight report into named constants without changing the output, then write a Mars version with constants from the start.
Results for “constants”
Showing 1–10 of 11
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Challenge
Unit mix-up
…find the leg that doesn't fit, convert it with a named constant, then convert a lander's feet per second to metres.
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Challenge
Signal delay
…by speed. The speed of light is already in the code as a constant, in kilometres per second. Minutes and seconds Nobody talks about a delay of 750.5 seconds. Show it as whole minutes and seconds…
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Challenge
Fuel for a burn
Ask for an engine burn length with input(), turn it into a number with float() and work out the propellant it uses, then read the tank level too and show what the burn leaves.
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Example
Creating Tuples
Tuples are immutable lists. Once created, they cannot be modified.
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Example
Import System Modules
Learning to import modules in Python. Modules extend your program capabilities.
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Article Mini projects
Calculating Escape Velocity in Python
…# 6.371 × 10⁶ (6,371,000 meters) gravity_constant = np.float64(6.674e-11) # 6.674 × 10⁻¹¹ (very small number) # NumPy handles these numbers efficiently print(f"Earth's mass: {earth_mass}") # Will…
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Example
Functions with Parameters
Parameters allow passing data to functions. Functions become more flexible.
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Quiz
Python Variables Quiz
…str and bool Type conversion with int() and dynamic typing Constants by convention and the global keyword How it works 15 questions: 11 with one correct answer, 4 where you select every correct answer…
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Challenge
Downlink time
…over several passes. Add PASS_S = 600 next to the other constant and print how many passes the file needs: Downlink time: 27 min 47 s Ground station passes: 3 A download that takes exactly 30 minutes…
